A spherical steel reaction vessel has an outer radius of 2.0 m and is covered in lagging 250mm thick. The thermal conductivity of the lagging is 0.4 W/m K. The temperature at the surface of the steel is 340⸰C and the surface temperature of the lagging is 45 ⸰ Calculate the heat loss.Thermal Conductivity;k=385 W/mK

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A spherical steel reaction vessel has an outer radius of 2.0 m and is covered in lagging 250mm thick. The thermal conductivity of the lagging is 0.4 W/m K. The temperature at the surface of the steel is 340⸰C and the surface temperature of the lagging is 45 ⸰ Calculate the heat loss.Thermal Conductivity;k=385 W/mK

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